This Thyristor Control Box is designed to be an easy interface add-on box to any control panel for AHUs. This is particularly suitable for the Masteraria Control panels: CM00006125 and CM00006148.It is controlled via a Digital command for "Enable" plus an Analogue 0..10Vdc (externally supplied to the thyristor Box by the main AHU controller) for the power modulation of the thyristor.This box is equipped with a forced ventilation system via an internal fan for heat dissipation.TECHNICAL SPECIFICATIONS:Power Supply: Three phase 400 VacDimensions: 543W x 654H x 260DmmIP Protection: IP55Thyristor SSR elements up to: 72KwInternal dissipation ventilation system: YESBuilt in Security Thermostat links